Melo weather in December

In December, Melo sees average daytime highs of 28°C and overnight lows near 17°C, with 101 mm of rain across 8.9 wet days and about 14.1 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels humid.

Daylight stretches from about 14 hours at the start of December to 14 h 06 min by month's end. Set against the rest of the year, December is Melo's 1st-clearest and 5th-windiest month. For the whole year in context, see Melo's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
17°
9th coldest
Rainfall
101 mm
8.9 wet days
Daylight
14 h 06 min
6:29 AM – 8:36 PM
Cloud cover
51%
1st clearest
Wind
13 km/h
5th windiest
Solar energy
6.97 kWh/m²
Travel score
6.3
out of 10

Melo is capital city of the Cerro Largo Department, Uruguay.

Density
2,981/km²
people per km²
Founded
1795

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 29°C by the end.

A typical December day in Melo reaches about 28°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, December runs about 3°C warmer than November and about 1°C cooler than January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52715
62716
72716
82716
92816
102816
112816
122816
132816
142816
152816
162817
172817
182817
192817
202817
212917
222917
232917
242917
252917
262918
272918
282918
292918
302918
312918

Melo weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°1129.513.95.5
Feb28° / 18°1049.913.25.7
Mar27° / 17°968.812.26.7
Apr24° / 14°1369.411.27.0
May20° / 11°108810.46.5
Jun17° / 11899.95.6
Jul17° / 1088.410.15.5
Aug19° / 1088.410.86.3
Sep20° / 10°1229.211.86.3
Oct23° / 12°1339.712.86.7
Nov25° / 14°1008.113.77.1
Dec28° / 17°1018.914.16.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55743
65743
75743
85644
95743
105743
115644
125644
135644
145644
155545
165545
175446
185446
195446
205446
215446
225446
235545
245545
255545
265545
275545
285644
295644
305743
315842

Chance of precipitation in December

Any precipitation

Melo gets around 101 mm of rain over 8.9 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
426
526
626
726
826
927
1027
1128
1228
1329
1429
1530
1630
1731
1831
1932
2032
2132
2231
2331
2431
2530
2630
2730
2829
2929
3029
3129

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the humid band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 27% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1283026151
2283026151
3283026151
4273027151
5273027152
6262928152
7262929152
8252929152
9242930152
10232930162
11222831162
12212831173
13202832183
14192832193
15182732193
16172632214
17162632224
18152532235
19152432245
20142332256
21142331267
22132231277
23132130288
24132129299
25122029309
261219283110
271219273110
281219273211
291219263211
301119263312
311119263312

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 hours at the start of December to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 6:27 AM to 6:37 AM, and sunset from 8:26 PM to 8:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.06:278:26
214.06:278:26
314.06:278:27
414.06:278:28
514.06:278:29
614.06:278:29
714.06:278:30
814.16:288:31
914.16:288:32
1014.16:288:32
1114.16:288:33
1214.16:288:34
1314.16:298:34
1414.16:298:35
1514.16:298:36
1614.16:298:36
1714.16:308:37
1814.16:308:37
1914.16:318:38
2014.16:318:38
2114.16:318:39
2214.16:328:39
2314.16:328:40
2414.16:338:40
2514.16:338:41
2614.16:348:41
2714.16:348:42
2814.16:358:42
2914.16:368:42
3014.16:368:42
3114.16:378:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.97 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 6.97 kWh/m² in December across the year — December's 6.97 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in December

Is December a good time to visit Melo?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.3
Sightseeing
6th-best month of the year
7.1
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Melo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Melo in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Melo sees daytime highs around 28°C and nights near 17°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Melo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Melo peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep7High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Melo?

Melo sits at 32.4°S, 54.2°W, 102 m above sea level, in Uruguay. The nearest listed city is Jaguarão, 77 km away.

JaguarãoTreinta y TresArroio GrandeBagéPiratiniSanta Vitória do PalmarDom Pedrito

Topography around Melo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Melo.

Within 3 km, the terrain around Melo has only modest variations in elevation — a maximum elevation change of 51 m around an average of 108 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 142 m; within 80 km, significant variations in elevation — a maximum elevation change of 383 m.

The land around Melo is covered by grassland (42%), artificial surfaces (30%) and trees (25%) within 3 km, grassland (83%) within 16 km, and grassland (70%) within 80 km.

3 km
51 m
16 km
142 m
80 km
383 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Jaguarão 77 km · Treinta y Tres 98 km · Arroio Grande 102 km · Bagé 115 km · Piratini 143 km · Santa Vitória do Palmar 148 km · Dom Pedrito 161 km · Capão do Leão 172 km

Uruguay travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / I / L
230 V · 50 Hz
Prices
≈ 66% of US
price level, 2025
GDP per capita
$25,216
2025
Happiness
6.6 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 542
Religion
none 47%Roman Catholic 37%Protestant 15%atheist 10%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Melo (-32.3682°, -54.1641°, elevation 102 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).